Validity Test of the IPD-Work Consortium Approach for Creating Comparable Job Strain Groups Between Job Content Questionnaire and Demand-Control Questionnaire

Details

• Personal Author:
  Choi B ; Ko S ; Ostergren P-O
• Description:
  Objectives: This study aims to test the validity of the IPD-Work Consortium approach for creating comparable job strain groups between the Job Content Questionnaire (JCQ) and the Demand-Control Questionnaire (DCQ). Material and Methods: A random population sample (N = 682) of all middle-aged Malmö males and females was given a questionnaire with the 14-item JCQ and 11-item DCQ for the job control and job demands. The JCQ job control and job demands scores were calculated in 3 different ways: using the 14-item JCQ standard scale formulas (method 1); dropping 3 job control items and using the 11-item JCQ standard scale formulas with additional scale weights (method 2); and the approach of the IPD Group (method 3), dropping 3 job control items, but using the simple 11-item summation-based scale formulas. The high job strain was defined as a combination of high demands and low control. Results: Between the 2 questionnaires, false negatives for the high job strain were much greater than false positives (37-49% vs. 7-13%). When the method 3 was applied, the sensitivity of the JCQ for the high job strain against the DCQ was lowest (0.51 vs. 0.60-0.63 when the methods 1 and 2 were applied), although the specificity was highest (0.93 vs. 0.87-0.89 when the methods 1 and 2 were applied). The prevalence of the high job strain with the JCQ (the method 3 was applied) was considerably lower (4-7%) than with the JCQ (the methods 1 and 2 were applied) and the DCQ. The number of congruent cases for the high job strain between the 2 questionnaires was smallest when the method 3 was applied. Conclusions: The IPD-Work Consortium approach showed 2 major weaknesses to be used for epidemiological studies on the high job strain and health outcomes as compared to the standard JCQ methods: the greater misclassification of the high job strain and lower prevalence of the high job strain. [Description provided by NIOSH]
• Subjects:
  Epidemiology Men Occupational Health Safety Stress, Psychological Women
• Keywords:
  Author Keywords: Epidemiological Studies Job Stress Malmö Misclassification Scoring Methods Sensitivity Specificity Worker Health Work Experience
• ISSN:
  1232-1087
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  321-333
• Volume:
  28
• Issue:
  2
• NIOSHTIC Number:
  nn:20056007
• Citation:
  Int J Occup Med Environ Health 2015 Feb; 28(2):321-333
• Contact Point Address:
  B. Choi, Center for Occupational and Environmental Health, University of California, Irvine, 100 Theory, Suite 100, Irvine, CA, USA
• Email:
  b.choi@uci.edu
• Federal Fiscal Year:
  2015
• Performing Organization:
  University of California Los Angeles
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  International Journal of Occupational Medicine and Environmental Health
• End Date:
  20270630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:6d3e4ca44c4dda745485cc9dba25d56f3d98bd122f4f2177ae74d0855375c65d4e2b6457f2e8e89f2e082a3b880b398da9a2379044d964266a5e26517a41ed9c
• Download URL:
  https://stacks.cdc.gov/view/cdc/213723/cdc_213723_DS1.pdf
• File Type:
  [PDF - 236.36 KB ]